Multicell shuttle box for looms



Dec. 27, 1938. c. J. LINDEGREN ET AL MULTICELL SHUTTLE BOX FOR LOOMSFiled Jan. 51, 1958 Flin eqren co B. ch

" springs.

Patented Dec. 27, 1938 UNITED sures PATENT OFFICE MULTICELL SHUTTLE BOXFOR LOOMS sachusetts 'Application'January 31, 1938, Serial No. 187,827

4 Claims.

This invention relates to a shuttle box made of pressed 'metal and it isthe general object of the invention to provide a simple and durableshuttle box made of pieces of metal the major 5 part of which are flatand assembled in such a way as to withstand the shock incident to theboxing of the shuttle.

Certain shuttle boxes are usable in diiTerent types of looms because ofthe fact that the shuttles are of substantially the same dimension. Forthis reason a shuttle box built to receive a relatively large silkshuttle, for instance, can also be used on a cotton loom employing acom.- paratively small cotton shuttle of the same size.

1 In such cases, however, the lays of one type of box. It is a furtherobject of our present invention to permit the use of the greater part ofan assembled sheet metal multi-ce1l shuttle box in different types oflooms by providing removable tongue guides which can-be adapted to theparticular type of loom on which the shuttle box is to be used.-

In this connection it is a more specific object of our present inventionto adapt the removable tongue for reception of portions of the binderThe latter will be secured to welded parts of'the shuttle box and'by theconstruction just described the removable tongue will be relieved of anyvibration incident to motion. of the spring during shuttle boxing.

It is another object of our invention to extend the horizontal platesbeyond the box mouth wall and secure to the extensions a vertical stripspaced from the mouth wall tolimit outward motion of the binders. Thisstrip is subjected to considerable vibration and strain during loomoperation because of the constant striking thereof by the binderincident to shuttle boxing. In order therefore that this strip may beproperly supported we provide additional blocks welded to .435 theplates and projecting into holes punched in said strip. The latter isalso welded to the blocks and the addition'al'holding areas between theblock and the strip provide a strong and durable attachment of the stripto the box. In

many looms it is customary to make the inner extended to boxes notnecessarily limited'to two In this way the blocks not only assist in'holding the binder stripbut also'adapt the box to the use of bindersconstructed as described.

The binders are ordinarily'pivoted on a ver tical pin which extendsalong the front of the l 5 box' near the outer" end'thereof. This pin issubjected to'a strain'similar to that imposed upon the binder stripalready mentioned, but it is necessary to be able to remove the pin topermit renewal of binders. The pin therefore is l0 comparatively loosein'itsinounting and should be braced by bearings of greater width thanthe thickness of the plates. It is a further object of ourpresent"inveh'tionto provide a pair of washers for each plate, oneaboveand the other 5 below'an'd extend'a "vertical tube 'through'thesewashers and the associated plate to define a bearing of considerablelength for the binder It is necessary to provide some connection betweenthe gang of'boxe's and the box lifter rod extending upwardly from thebox motion. As shown hereinafter we bend sheet metal into angle form,and cut an elongated'notch along the bent edge thereof to receive thatpart of the 1725 rear wall of the bottom cell which extends below thebottom plate of the lowest cell. The bracket thus formed is welded tothe adjacent plate and Wall and maybe perforated to receive attachingconnections for the topof the box lifter rod. P

With these and other objects in view which will apear as thedescriptionproceeds, our invention resides in the combination and arrangement ofparts hereinafter described and set forth.

In the accompanying drawing, wherein a convenient embodiment of ourinvention is set forth,

Fig. 1 is a top plan view of a shuttle box made according to our presentinvention, parts being in section,

Fig.2 is a front elevation of the multi-cell box" shown in Fig. 1,

Fig; 3 is an end elevation viewed from the cen ter of the 160m andtaken-in the direction of arrow-3,-Fig. 2, parts being in section,

' Figs. land 5 are detailed vertical sections, respe'ctively, on lines44 and 5--5 of Fig. 1,

Fig. 6 is a detail vertical section on. line -6% of 'Fig. 2, and

Fig. '7 is a'view similar-to the left end of Fig. 1 showing amodifiedtongueand guide plate.

Referring to the drawing; we have shown a two-cell shuttle 'box'butit''is tobe understood that the construction set 'forth hereinafter can becells. The cells C'are formed of three identical 59 having a verticalbore proportioned to receive plates l0 spaced apart vertically anddisposed horizontally when the shuttle box is in the loom. Each platehas extending from the rear edge thereof a plurality of tenons H whichproject through vertical relatively narrow sheet metal backs l2. Therewill be a back for each plate and the back for the top plate willproject above the latter as at l3 so that the tenons I I may extendthrough slots l4 formed in the backs. By

this construction bending of the metal is avoided and the two parts so:connected may be flat and the tenons welded to the four sides of theslots through which they extend.

Extending along the front outer corner of the shuttle box is a tonguewall l5 held to the plates It by tenons i6 thereon which project intoand are welded to the wall, thus keeping the plates spaced vertically.Tapped holes l'l, one above the top plate l0 and the other below thebottom plate, pass through the wall l5. Bolts l8 are threaded into holesIT and are held by check nuts it bearing against the rear of wall I5. Atongue plate 26 extends vertically along the front face of wall l5 andis held theretoby the heads 2! of the bolts. The outer vertical edge ofthe tongue plate is formed with a guide tongue 22 to fit a lay carriedguide plate indicated in dot and dash lines in Fig. 1 at 23.

As shown in Fig. 2 the right hand edge of the tongue plate 2!? is formedwith notches 24 to receive the left ends of the feet 25 of the bindersprings indicated in dot and dash lines at 26. The binder springs areheld in place by bolts 27 which are threaded into the tongue wall I 5.The notches 2 will hold the binder springs from falling away from thebinders should their bolts work loose, but it should be noted thatvibration of the springs due to shuttle boxing will not disturb thesetting of the bolts l8 and the tongue plate.

Each plate has a relatively wide inner end 30 from which projects arelatively narrow arm 3i. The arms are welded to a vertical binder stopor strip 32 somewhat as set forth in prior Patent No. 1,826,317. We havefound it desirable to give additional support to the binder stop and doso by providing blocks 33, one for each cell floor, as shown in Fig. 3.

Each block is welded to the fioor with which it is associated andhasatongue 36; which extends into an opening 35 punched in the stop strip32. A tongue 36 on the arm 3| of each cell also extends into the opening35' and the two tongues 34 and 36 are welded together and also to thewalls of the slot-or opening into which they project to be fastened tothe part 32. The compartment 5! between the top of a block 33 and end ofthe box is a binder pin 15 on which the binders B pivot. Thispin'extends through'forward extensions 46 on each of the plates ill andalso through specially formed bearings illustrated more particularly inFig. 4. 7 Each of these bearings comprises upper and lower washers 41and 48, respectively; through which extends atube the pin 45. Thewashers, tube 49 and adjacent portions of the plate lli'are allweldedtogether I so that the bearing is held rigidly in position ingspace for the binder pin; V

In order that the box may be lifted when placed in the loom we attachthereto a bracket 50 formed of a flat sheet metal plate having avertical part 5| from which is bent a horizontal attaching ledge 52. Asshown in Fig. 6 we cut an elongated notch 55 along the uper rear bentedge of the bracket of a. sufiicient depth to receive that part 5% ofthe lowest back member l2. The ledge 52 lies close to and is welded tothe lowest plate It, while the depending flange 56 is welded into thenotch 55 to provide a rigid construction by. which the lifting force ofthe box lifter rod may be transmitted to the shuttle box, by a boxlifter rod 60.

Fig. 7 shows a tongue plate 65 with a tongue 65 wider than tongue 22 tofit a guide plate different from that shown at 23 and being part of adifferent type of loom. The part of the tongue plate 65 for attachmentto the shuttle box will be substantially similar to the correspondingpart shown in Fig. 2, the chief difference being the size to fit adiiferent lay carried guide 61. The main body of the shuttle box willremain the same but there will be a set of different tongue plates fromwhich the correct one for a given style of loom is chosen. 7 a

While we have described the tongue plate for the outer end of theshuttle box, it is to be understood that a similar tongue plate 16 isused for the inner end of the box, plate 79 being removable and havingthe essential characteristics of plate 20 except that the springreceiving notches may be omitted. There will also be a set of plates 78wtih different tongues for the purpose described in connection withplate 20.

From the foregoing it will be seen that we have providedra multi-cellshuttle box formed of sheet metal and so constructed as to haveremovable tongue plates, thereby adapting the shuttle box for use invarious types of looms employing the same size shuttle but withdifierently'formed box guide plates. It will further be understood thatthis construction permits the renewal of worn tongue plates. Theconstruction of the tongue plate is such that the binder springs can beheld to the shuttle box without disturbance due to vibration when theshuttle is boxed, and the notches in the tongue plate serve to hold thefoot of the spring should the screw for the latter work loose. It willalso be seen that the blocks secured to the forwardly projecting arms ofthe horizonthrough a bearing of durable construction including washerslocated above and below plate ill and surrounding a vertical tube, theparts 'being welded together to afford substantial support for thebinder pin. Although we have shown the-blocks as located on the tops ofcertain of the plates it, yet we'do not wish to be limited to .thislocation of the blocks. The bracket 53 is specially constructed toreceive the lower edge of the bottom back l2."

Having thus described our. invention it will be seen that changes, andmodifications may be made therein by those skilled in the art withoutdeparting from the spirit and scope of the invenlooms, a plurality ofvertically spaced horizontal plates, means to hold the outer ends oftheplates in spaced vertical relation, additional means to ,hold the rearportions of the inner ends of said plates in vertical spaced relation, abox mouth forming wall extending vertically in front of and spacedforwardly from said additional means and secured to the plates,forwardly projecting extensions from the plates lying in front of saidwall, a vertically extending shuttle binder limiting strip of sheetmetal spaced forwardly from said wall and having vertically space-dslots therein, the extensions of certain of the plates extending intothe slots in said binder limiting strip, and blocks welded to certain ofsaid extensions and extending into corresponding slots in said binderlimiting strip to be secured to the latter, each block serving to holdthe corresponding extension and binder limiting strip together and alsoproviding a binder space between adjacent extensions of less height thanthe space between the corresponding adjacent plates.

2. In a sheet metal multi-cell shuttle box for looms, a plurality ofvertically spaced horizontal plates, means to hold the outer ends of theplates in spaced vertical relationship, additional means to hold therear portions of the inner ends of the plates in spaced verticalrelationship, a box forming wall extending vertically in front of andspaced forwardly from said additional means and secured to said plates,extensions projecting forwardly from said plates and in front of saidwall, a vertical shuttle binder limiting strip extending vertically infront of and spaced forwardly from said wall and secured to said platesand having slots therein for certain of said extensions, tongues formedon certain extensions to project into corresponding slots in said binderlimiting strip and be secured to the latter, and metallic blocks securedto certain of said extensions and having tongues to project into theslots of the binder limiting strip which receive the tongues of' thecorresponding extensions, the tongues of the blocks being secured tosaid binder limiting strip, and said blocks defining a binder receivingcompartment of less height than the distance between adjacent plates.

3. In a sheet metal multi-cell shuttle box for looms, a plurality ofsheet metal horizontally extending vertically spaced plates, means tohold said plates in spaced relation vertically, a binder pivot pinextending vertically through the plates, each plate having a binder pinreceiving bearing including a vertical tube extending above and belowthe plate, and sheet metal elements, one above and the other below andsecured to each plate and extending around and secured to thecorresponding binder pin bearing tube.

4. In a sheet metal multi-cell shuttle box for looms, a pair ofhorizontally extending vertically spaced plates, means to hold saidplates in spaced vertical relation, a binder pin extending verticallythrough the plates, and a bearing on each plate for the binder pin, eachbearing comprising a pair of sheet metal washers welded to thecorresponding plate one above and the other below said plate, and saidbearing also including a vertically extending metallic tube throughwhich the binder pin extends and to which said washers are welded.

CARL' J. LINDEGREN. JACOB B. OLCH.

